Republic of Ireland striker Robbie Keane admits he might have to alter his natural game for their Euro 2012 opener against Croatia.
The 31-year-old is his country's record scorer and usually leads from the front as captain with his deadly finishing.
However, there had been suggestions that veteran coach Giovanni Trapattoni could change their normal 4-4-2 formation after their goalless draw against Hungary on Monday.
Trapattoni, though, has dismissed those suggestions and, after Thursday's training session, the LA Galaxy player revealed there would be tweaks, rather than wholesale changes to the playing style.
"He has not really spoken about it," said Keane.
"He's had the same system since he came in, so if anything changes it would be a minor thing.
"As players you're always working hard, but for myself in this game, I might have to drop deeper on to the (opposition) holding midfielder and not let him dictate the game.
"It's more things like that, than say a formation change. We're not going to just go to a 4-3-3 when we haven't done it for a long time."